Oracle 5.0 Reference Manual page 1343

The following table compares the HA and Scalability capabilities of the various MySQL solutions:
Table 15.1. Feature Comparison of MySQL HA Solutions
Requirement MySQL
Replication
Availability
Platform Support All Supported
by MySQL
Server
Automated IP No
Failover
Automated No
Database Failover
Automatic Data No
Resynchronization
Typical Failover User / Script
Time Dependent
Synchronous No,
Replication Asynchronous
and
Semisynchronous
Shared Storage No, Distributed
Geographic Yes
redundancy
support
Update Schema No
On-Line
Scalability
Number of Nodes One Master,
Multiple Slaves
Built-in Load Reads, via
Balancing MySQL
Replication
Supports Read- Yes
Intensive
Workloads
Supports Write- Yes, via
Intensive Application-
Workloads Level Sharding
Scale On-Line (add No
nodes, repartition,
etc.)
Windows DRBD
Server
Linux Linux
Yes
Yes
Yes
Configuration
Dependent, 60
seconds and
Above
Yes
No, Distributed Yes
Yes, via
MySQL
Replication
No
One Active
(primary),
one Passive
(secondary)
Node
Reads, via
MySQL
Replication
Yes
Yes, via
Application-
Level Sharding
to Multiple
Active/Passive
Pairs
No
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Oracle VM MySQL
Template Cluster
Oracle Linux All Supported
by MySQL
Cluster
Yes Depends on
Connector and
Configuration
Yes Yes
N/A - Shared Yes
Storage
Configuration 1 Second and
Dependent, 60 Less
seconds and
Above
N/A - Shared Yes
Storage
No, Distributed
Yes, via Yes, via
MySQL MySQL
Replication Replication
No Yes
One Active 255
(primary),
one Passive
(secondary)
Node
Reads, via Yes, Reads
MySQL and Writes
Replication &
During Failover
Yes Yes
Yes, via Yes, via Auto-
Application- Sharding
Level Sharding
to Multiple
Active/Passive
Pairs
No Yes